That's the basic premise of "PlayerUnknown's Battlegrounds," the biggest game of 2017: Be the last person standing of 100 in a massive fight to the death. With such a thrilling, Hunger Games-esque premise, it's no surprise that the game has been such a breakaway hit — it's the most-played game on the world's largest game service, Steam.

"PUBG" is only available on PC at the moment, but it's also on the cusp of launching on Xbox One (the game arrives December 12). Though "PUBG" has only featured the one main map since its soft launch back in March, a second map is about to be added — and we just got our first real look at it! Here's what we know about "Miramar," the second playable area in 2017's biggest game:

The first thing to notice about "Miramar" is that it's not an island.

As you can see along the western border, a sheer cliff keeps players from driving off into the distance. On the northern edge, it's not clear what keeps players from running beyond the boundaries — there may be an "invisible wall" gating players in, or something more natural (like a mountain or valley).

Thematically, it's clear that Miramar is supposed to be in Mexico or Central/South America somewhere. The name "Miramar" means "sea view" (approximately) in Spanish, and the various areas on the map are clearly written in Spanish. ("El Pozo," for instance, is "The Hole.")

Unlike the tree-studded initial map in "PUBG," in Miramar the world is far more stark.

Whereas the game's first map had abandoned schools and such, Miramar has massive facilities like this.

Whereas the game's first map had abandoned schools and such, Miramar has massive facilities like this.

(Bluehole Studio/PUBG Corp.)

Some of the best moments in "PUBG" are spent sneaking around massive abandoned places, trying to get the jump on players nearby. This massive facility looks like a great opportunity for exactly that kind of terrifying gameplay, where you can clearly hear footsteps nearby but can't tell where they're coming from. Imagine yourself with a sniper rifle, sitting atop one of those towers, capping fools from a safe distance!

There are, of course, quieter little areas with just a few houses.

"PUBG" players will no doubt be more comfortable with this smaller set up — it's a pretty common theme in the game's first map, Erangel. The number of times I've parachuted into a small band of houses like this and gotten into several insane fights immediately is too many to count.

Do you dare explore each house? Which one is most likely to house someone else, waiting to murder you? These are the questions!

As the map's name suggests, there's plenty of sea-based gameplay to be found in Miramar.

As the map's name suggests, there's plenty of sea-based gameplay to be found in Miramar.

(Bluehole Studio/PUBG Corp.)

This massive power generator looks like an especially crazy place to fight. It's not hard to imagine hiding out at the end of the pier, holding off an ongoing flood of enemies — until one sneaks up from behind on a boat and takes you out, of course.

And yes, there are denser, more closely packed buildings that offer a similar experience to the urban areas from the game's first map.

And yes, there are denser, more closely packed buildings that offer a similar experience to the urban areas from the game's first map.

(Bluehole Studio/PUBG Corp.)

Maybe don't drive a loud four-wheeler through the middle of town here — that's a great way to get spotted and shot!

More than just a new map, "PUBG" is about to officially launch on PC. With it comes vaulting: the ability to leap over short objects, like a car hood or a broken fence. Check that out right here:

"PlayerUnknown's Battlegrounds" otherwise launches on Xbox One on December 12, and is currently available in Early Access on Steam for $30. It's expected to hit "1.0" by the end of 2017, which includes vaulting, the new map, and more additions.